Speakers

Cabling

Power Switch - red/white, also connected to bottom lock/switch on side

Top lock switch -

Tamper Switch - black/purple, pins 12/13 parallel port

Money Gubbins

All the ccTalk devices are connected to a MAX232 board in the back of the main cabinet.
This buffers between the TTL voltages used in ccTalk and the RS232 voltages used in the PC serial.
This board’s connected to the only serial port on the external motherboard connectors.